Colter cleaner



July 14, 1925. 1,545,895

T. A. HAMILTON COLTER CLEANER Filed May 17. 1923 wmwl'mm nu um Snow:foz,

Patented July 14, 1925.

UNITED STATES teases- THOMAS A; HAMILTON, or nMMETsnUne, IOWA.

COLTER CLEANER.

Application filed 'May 17, 1923. Serial No. 339,616.

won, a citizen of the United States, residing at Emmetsburg, inthecounty of Palo Alto.

and State of Iowa, have invented certain new and useful Improvements inColter Cleaners, of which the followingis a speci' fication.

This invention relatesgto colter cleaners, and more particularly to ascraper for removing dirt and the like from a colter wheel. I

An object of the invention is to provide means for removing dirt fromcolter wheels to prevent a wheel from clogging and to enable the user toobtain a clean out.

By removing the dirt from the wheel, it is prevented from falling on theaxle, thus preventing unnecessary wear on the bearings and prolongingthe life of such parts.

A further object of the invention is the provision of a scraper that maybe readily moved to an inoperative position.

In the accompanying drawings, I have shown one embodiment of theinvention. In this showing:

Figure 1 is a side elevation of a colter wheel showing the inventionapplied,

Figure 2 is a plan view,

Figure 3 is a detail sectional view on line 3-3 of Figure 1,

Figure 4 is a detail view of the scraper blade, and,

Figure 5 is a detail view of a supporting bracket. 1

Referring to the drawings, the reference numeral 1 designates the forkedends of a colter arm adapted to carry a colter wheel. The wheelcomprises a disk 2 having a hub 3. This hub is provided with a centralopening for the reception of an axle carried by the colter arms.

As shown in Figure 2 of the drawings, a scraper blade is arranged oneach side of the wheel. As the construction of each of these devices isthe same, a detail description of one will suffice. A bracket 4 ismounted on each end of the axle and extends upwardly. This bracket isprovided with a suitable opening for the reception of a rod 5. A sleeve6 surrounds this rod and is rotatable thereon. The rotation of thesleeve is lim ited by a set screw 7 mounted in the rod and received in aslot 8, in the sleeve. The sleeve is provided with an extension 9 having an opening 10. A scraper blade 11 is connected tothis sleeve. Asshown, the up per edge of the blade is provided with a flange 12 havingan opening 13. The blade is connected to the sleeve by means of afboltpassing through the openings 10 and 13. A pair of cotter pins 14 arearranged in openings in the rod 5 adjacenteach end of the, scraperblade. These'pins pass through'the loops 15 formed on the ends of coilsprings 16, the springs being arranged around the rod. As shown, thesprings are provided with U-shaped .ofiset central portions 17, adaptedto bear against the scraper blade and force it: toward the colter wheel.The inner end of the rod 5 is supported in a bracket 18. As shown, thisbracket is provided with base 19, having openings 20 for the receptionof the ends" of a U-shaped bolt 21. The bolt 21 surroundsthe colter arm,as shown in Figure 3 of the drawings, and nuts 22 are arranged on theends of the bolt. The bracket is secured to the base by means of a pin23 (see Figure 3) which per; mits the bracket to rotate about said pinas an axis- The bracket is provided with a pair of parallel arms 24,having openings 25. A sleeve 26 is .pivotally mounted in these openingsby means of pins 27, and the sleeve is adapted to revolve about thesepins as an axis. The rod 5 passes through the sleeve 26 and is thusconnected to the colter arm by the universal joint. The inner end of thesleeve is provided with grooves 28 adapted to receive a pin 29 carriedby the rod 5 to retain the rod in an adjusted position when the pin isin-the grooves. The pin isretained in the grooves by means of a spring30 surrounding the rod '5 and arranged between the sleeve 26 and awasher 31. A cotter pin 32 passes through an opening in the rod 5 toretain the washer 31 in position.

In operation, the portion 17 of the spring 1.6 forces the scraper blade11 toward the colter wheel 2 to remove any dirt or other foreign matterfrom the surface of the wheel. The rod 5 is held in an adjusted positionby means of the pin 29 received in the grooves 28. Any irregularities inthe co-lter wheel due to wear are compensated for by the swivel mountingof the inner end of the rod 5. When the device is to be placed in aninoperative position, the rod 5 is forced inwardly against the tensionof spring 30 to remove the pin 29 from the groove 28 and the rodis thenrevolved in the bracket 4 and sleeve 26 through a. half revolution. The

pin 29 again enters the grooves 28 to retain the parts in inoperativeposition. While the offset portion of spring 16 tends to force thecolter blade to revolve toward the wheel, the movement of the coulterblade is, limited by the engagement of the setlscrew 7 with the end ofthe slot 8 and the blade is retained spaced from the wheel.

It is to be understood that the form of my invention herewith shown anddescribed is to be taken as a preferred example of the same'and thatvarious changes in the shape, size, and arrangement of parts may beresorted to without departing fromthe spirit of the invention or thescope of the sub. joined claims.

Having thus described my invention,- I claim: V v.

1. In a wheeled colter, a supporting brack et having an opening, a rodextending through said opening, a swivel {joint mount ed on the colterframe, a sleeve arranged in said joint, the inner end of said rod beingrotatably mounted in .said sleeve, said sleeve being provided with agroove in one end, a blade arranged on the outer end of said rod,

' a spring engaging said rod andsaid blade to normally retain said bladein engagement with the side of the colter wheel, and a pinarrangedadjacent the inner end of said rod and received in said groove,whereby said blade may be moved to an inoperative position. 7 r

2. An attachment for wheeled colters comprising a rod arranged adjacentthe colter wheel and bent in a substantially horizonta l plane wherebyits outer end inclines inwardly toward the colter'wheel, means forrotatablysupporting the inner end of said rod, a blade mounted on theouter end of said rod and adaptedto turn independently and coaxiallythereof, a spring engaging said blade to normally maintain itin'engagement with the colter wheel, means for limiting the movement ofsaid blade toward the colter wheel, and means for holding said rodagainst rotation.

3. An attachment for wheeled colters comprising a rod arranged adjacentthe colter wheel and bent substantiallycentrally in a horizontal planewhereby its outer end in-' clines, inwardly toward the colter wheel, a

supporting bracket having an opening surrounding said rod adjacent thebend therein, a blade mounted 'on the outer end of said rod'and adaptedto turn independently. thereof, a spring engaging said blade to maintainit in engagement with the 'colter wheel,

THOMAS A.- HAMILTON.

Witnesses: V

' W. H. MOR ING,

MARGERY J. GmsoN.

